• About
  • Partners
  • Glossary
  • Email
  • Facebook
  • Twitter

Understanding Global Change

Discover why the climate and environment changes, your place in the Earth system, and paths to a resilient future.

Understanding Global Change

Discover why the climate and environment changes, your place in the Earth system, and paths to a resilient future.

Menu
  • Home
  • How to use this website
  • What is Global Change?
    • Close
    • icons-what-is-gcUnderstanding Global Change 101
    • icons-what-is-gc-bwUnderstanding Global Change Infographic
    • icons-processesHow the Earth System Works
      • Atmosphere
      • Biosphere
      • Elemental Cycles
      • Geosphere
      • Global Energy Budget
      • Hydrosphere
    • icons-causesCauses of Global Change
      • Human causes
      • Non-human causes
    • icons-effectsMeasurable Changes
      • Atmosphere
      • Biosphere
      • Geosphere
      • Hydrosphere
      • Quality of human life
      • Weather / extreme events
    • Close
  • Teaching Resources
    • Close
    • Planning for Instruction
    • Example Units and Lessons
    • Downloadable Graphics
      • InfographicUGC_Infographic_menu-full
      • Icon Setsugc-icons-menu
      • Earth SceneEarthScene_UGC_menu
    • Close
  • Construct a Model
Home → Glossary → oxygen levels

oxygen levels

The amount of oxygen present in water or the atmosphere. Oxygen enters water mainly from the atmosphere, and is necessary for many aquatic organisms to survive.

Learn more about oxygen levels.

A project of the University of California Museum of Paleontology  |  © 2021 University of California Regents. All Rights Reserved.